RU2010125251A - METHOD AND DEVICE FOR SIGNAL PROCESSING - Google Patents
METHOD AND DEVICE FOR SIGNAL PROCESSING Download PDFInfo
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- RU2010125251A RU2010125251A RU2010125251/08A RU2010125251A RU2010125251A RU 2010125251 A RU2010125251 A RU 2010125251A RU 2010125251/08 A RU2010125251/08 A RU 2010125251/08A RU 2010125251 A RU2010125251 A RU 2010125251A RU 2010125251 A RU2010125251 A RU 2010125251A
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- signal
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- modification
- encoding scheme
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- 238000000034 method Methods 0.000 title claims abstract 14
- 238000012986 modification Methods 0.000 claims abstract 20
- 230000004048 modification Effects 0.000 claims abstract 18
- 238000011084 recovery Methods 0.000 claims abstract 11
- 238000003672 processing method Methods 0.000 claims abstract 2
- 238000006243 chemical reaction Methods 0.000 claims 2
- 230000005236 sound signal Effects 0.000 claims 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
- G10L19/025—Detection of transients or attacks for time/frequency resolution switching
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234309—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/637—Control signals issued by the client directed to the server or network components
- H04N21/6377—Control signals issued by the client directed to the server or network components directed to server
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/65—Transmission of management data between client and server
- H04N21/658—Transmission by the client directed to the server
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8106—Monomedia components thereof involving special audio data, e.g. different tracks for different languages
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8126—Monomedia components thereof involving additional data, e.g. news, sports, stocks, weather forecasts
- H04N21/8133—Monomedia components thereof involving additional data, e.g. news, sports, stocks, weather forecasts specifically related to the content, e.g. biography of the actors in a movie, detailed information about an article seen in a video program
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Health & Medical Sciences (AREA)
- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Mathematical Physics (AREA)
- Quality & Reliability (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
1. Способ обработки сигнала, содержащий этапы, на которых: ! принимают, по меньшей мере, один из первого сигнала и второго сигнала; ! получают информацию режима и информацию флага модификации, указывающую, модифицирован ли первый сигнал; ! декодируют первый сигнал посредством схемы кодирования аудио, если информация режима указывает схему кодирования аудио; ! восстанавливают первый сигнал посредством применения информации восстановления после модификации к первому сигналу, если информация флага модификации указывает, что первый сигнал модифицирован; ! определяют базовый сигнал расширения, соответствующий частичной области первого сигнала, на основе информации расширения; и ! формируют расширенный сигнал понижающего микширования, имеющий расширенную полосу пропускания посредством восстановления сигнала области высоких частот с помощью базового сигнала расширения и информации расширения. ! 2. Способ по п.1, в котором схема кодирования аудио содержит схему кодирования в частотной области с использованием частотно-временного преобразования. ! 3. Способ по п.2, в котором схема кодирования аудио содержит восстановление первого сигнала во временную область, и в котором информация восстановления после модификации применяется к первому сигналу. ! 4. Способ по п.1, в котором информация флага модификации указывает, модифицирован ли первый сигнал во временной области. ! 5. Способ по п.1, в котором полоса пропускания сигнала области высоких частот не идентична полосе пропускания базового сигнала расширения. ! 6. Способ по п.1, в котором информация расширения содержит, по меньшей мере, одно из диапазона фильтра, применя� 1. A signal processing method, comprising the following steps: ! receive at least one of the first signal and the second signal; ! obtaining mode information and modification flag information indicating whether the first signal has been modified; ! decoding the first signal by an audio coding scheme if the mode information indicates an audio coding scheme; ! restoring the first signal by applying the modification recovery information to the first signal if the modification flag information indicates that the first signal has been modified; ! determining a base extension signal corresponding to a partial area of the first signal based on the extension information; and ! generating an extended downmix signal having an extended bandwidth by restoring the high frequency region signal with the base extension signal and the extension information. ! 2. The method of claim 1, wherein the audio coding scheme comprises a frequency domain coding scheme using a time-frequency transform. ! 3. The method of claim 2, wherein the audio coding scheme comprises restoring the first signal to the time domain, and wherein the modification recovery information is applied to the first signal. ! 4. The method of claim 1, wherein the modification flag information indicates whether the first signal has been modified in the time domain. ! 5. The method of claim 1, wherein the bandwidth of the high frequency region signal is not identical to the bandwidth of the base enhancement signal. ! 6. The method of claim 1, wherein the extension information comprises at least one of the filter range applied.
Claims (14)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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US98945207P | 2007-11-21 | 2007-11-21 | |
US98945007P | 2007-11-21 | 2007-11-21 | |
US60/989,452 | 2007-11-21 | ||
US60/989,450 | 2007-11-21 |
Publications (2)
Publication Number | Publication Date |
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RU2010125251A true RU2010125251A (en) | 2011-12-27 |
RU2449387C2 RU2449387C2 (en) | 2012-04-27 |
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Application Number | Title | Priority Date | Filing Date |
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RU2010125221/08A RU2010125221A (en) | 2007-11-21 | 2008-11-21 | METHOD AND DEVICE FOR SIGNAL PROCESSING |
RU2010125251/08A RU2449387C2 (en) | 2007-11-21 | 2008-11-21 | Signal processing method and apparatus |
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RU2010125221/08A RU2010125221A (en) | 2007-11-21 | 2008-11-21 | METHOD AND DEVICE FOR SIGNAL PROCESSING |
Country Status (11)
Country | Link |
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US (3) | US8504377B2 (en) |
EP (2) | EP2210253A4 (en) |
JP (2) | JP2011504250A (en) |
KR (2) | KR101221918B1 (en) |
CN (2) | CN101836250B (en) |
AU (2) | AU2008326956B2 (en) |
BR (1) | BRPI0820488A2 (en) |
CA (2) | CA2697830C (en) |
MX (1) | MX2010002629A (en) |
RU (2) | RU2010125221A (en) |
WO (2) | WO2009066959A1 (en) |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US10102865B2 (en) | 2012-12-13 | 2018-10-16 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Voice audio encoding device, voice audio decoding device, voice audio encoding method, and voice audio decoding method |
US10685660B2 (en) | 2012-12-13 | 2020-06-16 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Voice audio encoding device, voice audio decoding device, voice audio encoding method, and voice audio decoding method |
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